‎2.95 x 2.17 x 0.75 inches

Nice performance: krypton flashlight bulb can produce 3.6 volts at 0.75 amps, emitting bright light to meet daily lighting needs; The part number is 41 - 1661 Bulb compatibility: the krypton replacement bulb works well for 3D lights, the quality glass and metal materials allow them to work for a long time Easy installation: the flashlight bulbs are easy to install and remove, you can conveniently replace the broken bulbs on your flashlight without taking too much time